SuperglobalsEnv.php
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SuperglobalsEnv.php
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	<?php

	/*
	* This file is part of Psy Shell.
	*
	* (c) 2012-2023 Justin Hileman
	*
	* For the full copyright and license information, please view the LICENSE
	* file that was distributed with this source code.
	*/

	namespace Psy;

	/**
	* Environment variables implementation via $_SERVER superglobal.
	*/
	class SuperglobalsEnv implements EnvInterface
	{
	/**
	* Get an environment variable by name.
	*
	* @return string\|null
	*/
	public function get(string $key)
	{
	if (isset($_SERVER[$key]) && $_SERVER[$key]) {
	return $_SERVER[$key];
	}

	return null;
	}
	}